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Inspire Medical Systems, Inc.

INSP
Exchange
NYSE
Industry
Surgical & Medical Instruments & Apparatus
SEC CIK
0001609550

In the last 90 days, Inspire Medical Systems, Inc. insiders filed 0 open-market purchases and 1 sale; 275 institutions reported holding it in 13F filings for Q2 2026, worth $1.65B in total; no superinvestor holds it.

13F holders, Q3 2025

Institutional positions in Inspire Medical Systems, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
325
−27 vs. Q2 2025
Shares held
31.1M
−2.40M (−7.2%) vs. Q2 2025
Total value
$2.31B
−$2.04B (−46.9%) vs. Q2 2025
New holders
66
97 more added
Sold out
93
131 more reduced

4 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q2 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting INSP on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ3 2025: 325 institutions
Q1 2021: 251 institutionsQ2 2021: 248 institutionsQ3 2021: 254 institutionsQ4 2021: 289 institutionsQ1 2022: 299 institutionsQ2 2022: 287 institutionsQ3 2022: 301 institutionsQ4 2022: 340 institutionsQ1 2023: 374 institutionsQ2 2023: 407 institutionsQ3 2023: 365 institutionsQ4 2023: 343 institutionsQ1 2024: 327 institutionsQ2 2024: 325 institutionsQ3 2024: 347 institutionsQ4 2024: 357 institutionsQ1 2025: 363 institutionsQ2 2025: 356 institutionsQ3 2025: 325 institutionsQ4 2025: 343 institutionsQ1 2026: 301 institutionsQ2 2026: 275 institutions
Value heldQ3 2025: $2.31B
Q1 2021: $5.21BQ2 2021: $4.83BQ3 2021: $5.91BQ4 2021: $5.95BQ1 2022: $6.92BQ2 2022: $5.01BQ3 2022: $5.01BQ4 2022: $7.11BQ1 2023: $6.68BQ2 2023: $9.11BQ3 2023: $5.65BQ4 2023: $6.31BQ1 2024: $6.83BQ2 2024: $4.23BQ3 2024: $7.03BQ4 2024: $6.20BQ1 2025: $5.46BQ2 2025: $4.39BQ3 2025: $2.31BQ4 2025: $3.12BQ1 2026: $1.80BQ2 2026: $1.65B
Institutions holding INSP and their total value by quarter
QuarterHoldersValue
Q2 2026275$1.65B
Q1 2026301$1.80B
Q4 2025343$3.12B
Q3 2025325$2.31B
Q2 2025356$4.39B
Q1 2025363$5.46B
Q4 2024357$6.20B
Q3 2024347$7.03B
Q2 2024325$4.23B
Q1 2024327$6.83B
Q4 2023343$6.31B
Q3 2023365$5.65B
Q2 2023407$9.11B
Q1 2023374$6.68B
Q4 2022340$7.11B
Q3 2022301$5.01B
Q2 2022287$5.01B
Q1 2022299$6.92B
Q4 2021289$5.95B
Q3 2021254$5.91B
Q2 2021248$4.83B
Q1 2021251$5.21B

Institutions, Q3 2025

Shares, value and share of portfolio for each institution holding Inspire Medical Systems, Inc.; share changes are against Q2 2025.

Institutions holding INSP in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Franklin Resources Inc297,245$22.1M0.01%+68,681+30.0%Added
Dimensional Fund Advisors LP343,718$25.5M0.01%−1,149−0.3%Reduced
Millennium Management LLC356,808$26.5M0.02%+356,808New
D. E. Shaw & Co., Inc.358,857$26.6M0.02%+344,635+2,423.3%Added
Standard Life Aberdeen plc396,340$30.0M0.05%+153,238+63.0%Added
Champlain Investment Partners, LLC407,059$30.2M0.23%−5,047−1.2%Reduced
Morgan Stanley450,641$33.4M0.00%+147,769+48.8%Added
UBS Group AG467,736$34.7M0.01%+37,042+8.6%Added
Geode Capital Management, LLC504,987$37.5M0.00%−7,849−1.5%Reduced
BNP Paribas Arbitrage, SA522,180$38.7M0.03%+462,412+773.7%Added
Artisan Partners Limited Partnership526,242$39.0M0.06%+163,916+45.2%Added
Balyasny Asset Management LLC614,359$45.6M0.09%+614,359New
Janus Henderson Group PLC667,078$49.5M0.02%+26,155+4.1%Added
Soleus Capital Management, L.P.728,188$54.0M2.89%+619,188+568.1%Added
FMR LLC749,312$55.6M0.00%−1,536,430−67.2%Reduced
UBS Asset Management Americas Inc833,599$61.9M0.01%+225,291+37.0%Added
Braidwell LP883,747$65.6M1.95%+361,337+69.2%Added
State Street Corp979,309$72.7M0.00%−51,593−5.0%Reduced
Deerfield Management Company, L.P. (Series C)1,047,694$77.7M1.19%+907,694+648.4%Added
Baillie Gifford & Co1,084,350$80.5M0.06%−29,538−2.7%Reduced
William Blair Investment Management, LLC1,297,573$96.3M0.25%+528,404+68.7%Added
Citadel Advisors LLC1,748,409$129.7M0.10%+1,739,734+20,054.6%Added
Vanguard Group Inc3,000,087$222.6M0.00%−203,504−6.4%Reduced
BlackRock, Inc.3,547,195$263.2M0.00%−326,591−8.4%Reduced
T. Rowe Price Investment Management, Inc.4––+4New
Dragoneer Investment Group, LLC0$00.00%−2,354,411−100.0%Sold out
TimesSquare Capital Management, LLC0$00.00%−499,199−100.0%Sold out
Raymond James Financial Inc0$00.00%−230,153−100.0%Sold out
Eversept Partners, LP0$00.00%−164,473−100.0%Sold out
Tri Locum Partners LP0$00.00%−149,244−100.0%Sold out
Los Angeles Capital Management LLC0$00.00%−136,950−100.0%Sold out
Neuberger Berman Group LLC0$00.00%−99,791−100.0%Sold out
American Century Companies Inc0$00.00%−56,604−100.0%Sold out
Impax Asset Management Group plc0$00.00%−50,000−100.0%Sold out
Jennison Associates LLC0$00.00%−45,439−100.0%Sold out
Beck Bode, LLC0$00.00%−40,537−100.0%Sold out
California Public Employees Retirement System0$00.00%−38,537−100.0%Sold out
Schroder Investment Management Group0$00.00%−28,692−100.0%Sold out
LMCG Investments, LLC0$00.00%−25,659−100.0%Sold out
Centiva Capital, LP0$00.00%−19,554−100.0%Sold out
Cetera Investment Advisers0$00.00%−17,003−100.0%Sold out
Dark Forest Capital Management LP0$00.00%−16,403−100.0%Sold out
Oppenheimer Asset Management Inc.0$00.00%−15,161−100.0%Sold out
AXA S.A.0$00.00%−14,109−100.0%Sold out
Fieldview Capital Management, LLC0$00.00%−14,005−100.0%Sold out
Zacks Investment Management0$00.00%−13,621−100.0%Sold out
Nebula Research & Development LLC0$00.00%−13,522−100.0%Sold out
Granite Investment Partners, LLC0$00.00%−11,785−100.0%Sold out
Gilliland Jeter Wealth Management LLC0$00.00%−11,708−100.0%Sold out
Exchange Traded Concepts, LLC0$00.00%−11,177−100.0%Sold out
Clearbridge Investments, LLC0$00.00%−11,087−100.0%Sold out
Azzad Asset Management Inc0$00.00%−10,951−100.0%Sold out
Versor Investments LP0$00.00%−10,671−100.0%Sold out
Sivik Global Healthcare LLC0$00.00%−10,000−100.0%Sold out
Jackson Creek Investment Advisors LLC0$00.00%−9,618−100.0%Sold out
UBS Oconnor LLC0$00.00%−9,522−100.0%Sold out
Quadrature Capital Ltd0$00.00%−8,462−100.0%Sold out
Stifel Financial Corp0$00.00%−7,759−100.0%Sold out
Oak Associates, Ltd0$00.00%−6,785−100.0%Sold out
MML Investors Services, LLC0$00.00%−6,665−100.0%Sold out
Jupiter Asset Management Ltd0$00.00%−5,974−100.0%Sold out
Fox Hill Wealth Management0$00.00%−5,845−100.0%Sold out
Janney Montgomery Scott LLC0$00.00%−5,316−100.0%Sold out
First Trust Advisors LP0$00.00%−5,210−100.0%Sold out
Lisanti Capital Growth, LLC0$00.00%−4,810−100.0%Sold out
Trexquant Investment LP0$00.00%−4,463−100.0%Sold out
Gibbs Wealth Management0$00.00%−4,070−100.0%Sold out
Unique Wealth Strategies, LLC0$00.00%−3,735−100.0%Sold out
Toroso Investments, LLC0$00.00%−3,630−100.0%Sold out
Aigen Investment Management, LP0$00.00%−3,534−100.0%Sold out
Mariner, LLC0$00.00%−3,506−100.0%Sold out
Aviva PLC0$00.00%−3,396−100.0%Sold out
Hodges Capital Management Inc.0$00.00%−3,000−100.0%Sold out
Atria Investments LLC0$00.00%−2,948−100.0%Sold out
Entropy Technologies, LP0$00.00%−2,800−100.0%Sold out
Guggenheim Capital LLC0$00.00%−2,798−100.0%Sold out
HighTower Advisors, LLC0$00.00%−2,567−100.0%Sold out
JustInvest LLC0$00.00%−2,360−100.0%Sold out
Qsemble Capital Management, LP0$00.00%−2,353−100.0%Sold out
111 Capital0$00.00%−2,309−100.0%Sold out
Crossmark Global Holdings, Inc.0$00.00%−2,253−100.0%Sold out
Cerity Partners LLC0$00.00%−2,243−100.0%Sold out
Lebenthal Global Advisors, LLC0$00.00%−2,240−100.0%Sold out
TownSquare Capital, LLC0$00.00%−2,225−100.0%Sold out
Pathstone Holdings, LLC0$00.00%−2,137−100.0%Sold out
DRW Securities, LLC0$00.00%−1,984−100.0%Sold out
Portside Wealth Group, LLC0$00.00%−1,934−100.0%Sold out
Prospera Financial Services Inc0$00.00%−1,915−100.0%Sold out
RSM US Wealth Management LLC0$00.00%−1,877−100.0%Sold out
Kestra Advisory Services, LLC0$00.00%−1,853−100.0%Sold out
Allianz Asset Management GmbH0$00.00%−1,800−100.0%Sold out
Inceptionr LLC0$00.00%−1,800−100.0%Sold out
Graham Capital Management, L.P.0$00.00%−1,676−100.0%Sold out
China Universal Asset Management Co., Ltd.0$00.00%−1,574−100.0%Sold out
Utah Retirement Systems0$00.00%−1,552−100.0%Sold out
St Germain D J Co Inc0$00.00%−1,137−100.0%Sold out
Clearstead Advisors, LLC0$00.00%−183−100.0%Sold out
Creative Capital Management Investments LLC0$00.00%−130−100.0%Sold out
Cullen/Frost Bankers, Inc.0$00.00%−102−100.0%Sold out
Central Trust Co0$00.00%−67−100.0%Sold out